Table 1.
Nb-C-FIBID as a candidate material for single-photon detectors.
| Material | MoSi53 | NbRe69 | NbN52 | NbN70 | Nb-C52 | Nb-C-FIBID |
|---|---|---|---|---|---|---|
| d, nm | 3.3 | 15 | 5.8 | 14.4 | 23.3 | 15 |
| Tc, K | 3.85 | 6.77 | 8.35 | 15.25 | 11.2 | 5.6 |
| ρn, μΩcm | 175 | 145 | 400 | 281 | 25 | 572 |
| D, cm2s−1 | 0.47 | 0.56 | 0.31 | 0.6 | 4.45 | 0.49 |
| λ(0), nm | 708 | 483 | 450a | 290a | 156a | 1060 |
| ξ(0), nm | 8.7 | 4.8 | 5.4 | 5.4 | na | 6.5 |
| Ic/Idep | ≃0.7 | na | na | 0.65–0.9 | na | 0.7–0.74 |
| Leads | Tapered | Straight | Tapered | Straight | Straight | Straight |
d: stripe thickness; Tc: superconducting transition temperature; ρn: resistivity just above Tc; λ(0): estimate for the penetration depth at zero temperature; ξ(0): zero-temperature estimate for the coherence length.
na: not available.
aAn estimate which was made on the basis of the reported data.